EP2049831A2 - Système d'éclairage auxiliaire à fibres optiques - Google Patents

Système d'éclairage auxiliaire à fibres optiques

Info

Publication number
EP2049831A2
EP2049831A2 EP07813151A EP07813151A EP2049831A2 EP 2049831 A2 EP2049831 A2 EP 2049831A2 EP 07813151 A EP07813151 A EP 07813151A EP 07813151 A EP07813151 A EP 07813151A EP 2049831 A2 EP2049831 A2 EP 2049831A2
Authority
EP
European Patent Office
Prior art keywords
fiber optic
assembly
optic bundle
vehicle
distal portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07813151A
Other languages
German (de)
English (en)
Other versions
EP2049831A4 (fr
Inventor
Vernon Guillermo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INT America LLC
Original Assignee
INT America LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INT America LLC filed Critical INT America LLC
Publication of EP2049831A2 publication Critical patent/EP2049831A2/fr
Publication of EP2049831A4 publication Critical patent/EP2049831A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/0406—Accessories for helmets
    • A42B3/0433—Detecting, signalling or lighting devices
    • A42B3/044—Lighting devices, e.g. helmets with lamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2661—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions
    • B60Q1/2673—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions on parts worn by the driver, e.g. clothes, gloves or bags, specially adapted to provide auxiliary vehicle signalling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2661—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions
    • B60Q1/2673—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions on parts worn by the driver, e.g. clothes, gloves or bags, specially adapted to provide auxiliary vehicle signalling
    • B60Q1/2676—Helmets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/28—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating front of vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/30—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
    • B60Q1/302—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces mounted in the vicinity, e.g. in the middle, of a rear window
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/32—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/32—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
    • B60Q1/325—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights on or for running boards or steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/217—Doors, e.g. door sills; Steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/30—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for compartments other than passenger or driving compartments, e.g. luggage or engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging

Definitions

  • the present invention in general relates to diffuse backlighting via a fiber optic bundle, and in particular to transmission of light emitting diode emission via fiber optics in the context of backlighting of vehicle plates.
  • Low intensity lighting installations provide enhanced safety and decorative properties to a vehicle body or driver helmet.
  • Low intensity vehicle body lighting was largely impractical with incandescent bulbs owing to problems associated with high vertical profiles and heat management.
  • More recently, other approaches to backlighting vehicle body features have invoked direct lighting with a light emitting diode.
  • U.S. Patent 6,244,734 is representative of such efforts. However, such efforts have met with limited acceptance owing to intensity variation along the length of a feature such as a vehicle door kick plate. Intensity variations have been in part compensated for by a linear array of light emitting diodes or the use of a distant light emitting diode having light emission transmitted from beneath a lighted feature with a light pipe.
  • U.S. Patent 6,036,340 and U.S. Patent Application Publication 2002/0017267 Al are representative of such efforts.
  • a remote light emitting diode has previously been coupled to the terminus of a fiber optic bundle to provide lit piping within a vehicle interior.
  • U.S. Patent 6,854,869 is representative of such systems.
  • the fiber optic bundle outer layers obscure emission from fiber optics within the interior of the bundle and as a result provide insufficient intensity to backlight a transparent or translucent overlay positioned parallel to the fiber optic bundle.
  • Electroluminescent backlighting in a vehicle context has been limited to a narrow range of applications perceived to be of high value owing to the stringent electrical input requirements, material costs and susceptibility to environmental degradation.
  • U.S. Patent 5,641,221 is representative of vehicle electroluminescent backlighting.
  • a lighting device includes a housing containing a light emitting portion of a light emitting diode and a terminus of a fiber optic bundle such that light emission from the light emitting diode is communicated along the optical fibers.
  • the fiber optic bundle has a flattened distal portion with a cross-sectional array of layers of optical fibers.
  • a diffusing layer is attached to the fiber optic bundle overlying the flattened distal portion.
  • the lighting device upon being overlaid with a graphic and surrounded by a frame through which the graphic is visible, provides a vehicle lighting assembly securable to a vehicle substrate.
  • the vehicle light assembly is particularly well suited for vehicle exterior badging, kick plates and vanity lighting within the vehicle passenger compartment.
  • Fig. IA is a perspective view of an inventive diffused lighting device
  • Fig. IB is a longitudinal cross-sectional view of the device of Fig. IA along line IB-IB;
  • Fig. 2A is a transverse cross-sectional view of the device of Fig. IA along the line 2A-2A;
  • Fig. 2B is a transverse cross-sectional view of an alternate structure of an inventive diffused lighting device
  • Fig. 2C is a perspective view of a braided array extending from line 2A-2A;
  • Fig. 3 is an exploded view of a multiple light emitting diode (LED) housing and a fiber optical array;
  • Fig. 4 is an electrical wiring schematic depicting the wiring of an inventive device to a vehicle electrical system containing a bus control module (BCM);
  • BCM bus control module
  • Fig. 5 is an electrical schematic depicting the relationship of an inventive device to a simplified power and activation switching circuit
  • Fig. 6 is a perspective view of a vehicle running board embodiment of the present invention
  • Fig. 7 is a transverse cross-sectional view of the running board inventive embodiment depicted in Fig. 6 transected along the line 6-6;
  • Fig. 8 is an exploded view of the running board inventive embodiment depicted in Fig. 6;
  • Fig. 9 is a perspective view of a vehicle running board embodiment of the present invention.
  • Fig. 10 is a transverse cross-sectional view of the running board inventive embodiment depicted in Fig. 6 transected along the line 6-6;
  • Fig. 11 is an exploded view of the running board inventive embodiment depicted in Fig. 6;
  • Figs. 12A and 12B depict in the hash-marked regions an inventive device provided in the context of (12A) a vehicle running board and vehicle kick plate, and (12B) a door frame base spanning version thereof;
  • Fig. 13 depicts in the hash-marked region an inventive device provided in the context of a vehicle tailgate plate;
  • Fig. 14 depicts in the hash-marked region an inventive device provided in the context of a vehicle trunk running light insignia
  • Fig. 15 depicts in the hash-marked region an inventive device provided in the context of a vehicle roll bar running light insignia
  • Fig. 16 depicts in the hash-marked region an inventive device provided in the context of a hood, grille, engine cover, and door;
  • Fig. 17 depicts in the hash-marked region an inventive device provided in the context of a watercraft
  • Fig. 18 depicts in the hash-marked region an inventive device provided in the context of a motorcycle
  • Fig. 19 depicts in the hash-marked region an inventive device provided in the context of a snowmobile
  • Fig. 20 depicts in the hash-marked region an inventive device provided in the context of a helmet; and Fig. 21 depicts in the hash-marked region an inventive device provided in the context of apparel.
  • the present invention has utility as a backlit lighting system.
  • the dimensional and performance properties of an inventive lighting device are particularly well suited for vehicle passenger compartment and vehicle exterior trim illumination.
  • the high optical uniformity of the light flux emitted orthogonal to a fiber axis is achieved by flattening a fiber optic bundle receiving light from a light emitting diode by flattening the fiber optic bundle. Insertion of a diffusion coating intermediate between a fiber optic bundle and a viewing vantage point affords still more uniform optical flux gradients across a flattened portion of an optical fiber bundle receiving light emission from the light emitting diode proximal to a terminus of the fiber optic bundle.
  • Light emission uniformity from the flattened bundle is enhanced by placing a diffusion layer intermediate between the fiber optic bundle and the direction of viewing.
  • a backing layer is optionally applied to the rearmost surface of the rectilinear portion of the fiber optic bundle relative to the direction of viewing.
  • a transparent sheath is optionally provided to envelope at least the flattened portion of the fiber optic bundle to provide an added degree of protection from the environment or otherwise stabilize the structure.
  • the low vertical profile of the rectilinear portion of a fiber optic bundle is well suited for placement underlying a transparent or translucent structure such as those found within a passenger compartment or a vehicle exterior.
  • the lighting device 10 includes a light emitting diode (LED) having electrical leads 14 and 14' extending therefrom.
  • a resistor 11 intermediate between an LED 12 and power leads 14 and 14' serves to modify input voltage to the light emitting diode 12.
  • the LED 12 is chosen to provide any number of output wavelengths from the visible and ultraviolet electromagnetic radiation spectrum. Additionally, LEDs are readily modulated to provide lighting effects such as color-changing effects or pulsed light emissions.
  • a housing 16 encompasses the light emitting element of the LED 12 and an end 18 of fiber optic bundle 20.
  • the end 18 is positioned relative to the LED 12 so as to receive light emission from the LED 12 and direct light along the length of the fibers making up the fiber optic bundle 20.
  • the housing 16 is readily formed in a variety of forms to satisfy the functional requirement of retaining the end of a fiber optic bundle and a light emitting diode in a preselected positional relationship.
  • a housing 16 formed from an injection molded thermoplastic is formed to have in one embodiment a flexible seam extending the length of the housing 16 with complementary fastener portions along the open edge of the housing such that closure along the seam 22 brings complementary fastener portions 24 and 24' into a closed relationship forming the collar- like housing 16.
  • the housing 16 receives by friction fit or pressure adhesive the end 18 of the fiber optic bundle 20, and in a similar fashion secures LED 12.
  • the housing 16 optionally includes a reflective coating 17 therein to reflect more emission from the LED 12 into the end 18, as shown in FIG. IB.
  • the fiber optic bundle 20 proximal to the housing 16 is retained within a wrapping 22.
  • the wrapping 22 illustratively includes heat shrink tubing, an adhesive tape, and a fiber or fabric lashing thereabout.
  • Fiber optic bundle 20 extending from an end 24 of an optional wrapping 22 has a distal flattened portion 26 having a defined width. In a distal portion 26 the fiber optic bundle 20 is flattened to form flattened layers of fibers.
  • the fibers making up the fiber optic bundle 20 are flattened to form a single layer of fibers.
  • the fibers are contiguous and parallel.
  • a benefit of a flattened array of fibers is that light emission from a fiber extending orthogonal to the fiber axis is not scattered or otherwise dissipated by intermediate fibers intermediate between the rearmost light emitting fiber and a viewing position.
  • a single flattened layer of fibers affords insufficient incidental light emission and in such instances a flattened distal portion 26 includes from two to eight layers of fibers flattened into an array.
  • the array need not be rectilinear as depicted in the figures and instead can assume a concave, convex, periodic, or other cross-sectionally varying form.
  • the length of fiber optic bundle 20 between the proximal end 16 and the distal terminus 29 of the fiber optic bundle is virtually unlimited since illumination losses along the length of the fiber optic are approximately 1% illumination loss per meter of fiber.
  • the device 10 typically has a flattened distal portion with a width up to about 5 centimeters and a length of up to 40 centimeters.
  • the total area illuminated by each LED is less than or equal to 200 square centimeters.
  • Fig. 2A depicts a two-layer fiber optic array.
  • the typical thickness of flattened distal portion 26 is between 0.3 and 3 millimeters.
  • a reflector 31 is provided to reflect light back down the length of the fiber optic bundle 20.
  • a suitable reflector 31 is formed from a metal foil or laminate of metal foil with polymers such as MYLAR®.
  • a diffusing layer 30 is applied between the distal portion 26 and the viewer.
  • a diffusion layer is readily formed from translucent substances illustratively including thermoplastics, thermosets, colloidal particulate and frosted glass.
  • reflector layer 32 is readily replaced with another layer of diffusing layer 30 denoted in Fig. 2B at 30'. Such bidirectional emission is contemplated in, for example, vehicle applications such as window treatments.
  • a reflector layer 32 is provided in opposition to diffusing layer 30.
  • Materials suitable for the formation of a reflector layer are those contemplated above with respect to reflector 31.
  • reflector layer 32 With the inclusion of reflector layer 32, the majority of light emission from the flattened distal portion 26 of the fiber optic bundle 20 is emitted through the viewing surface 28 and lacks the intensity striations associated with the dimensionality of the fibers owing to the diffusional properties of diffusing layer 30.
  • flattened distal portion 26 and layers 30 and 32 are encompassed within a sheath 34.
  • the sheath 34 is illustratively formed from a transparent thermoplastic, a transparent latex, varnish or other hardening polymer with the only limitation being that the sheath 34 is transmissive of light emitted through the fiber optics and provides a measure of protection against debris accumulation and environmental degradation.
  • the flattened distal portion 26 can take several forms such as parallel, braided or woven fibers. The advantage of woven and braided fiber arrays is a measure of structural support and uniformity at the expense of nominal light scattering losses relative to parallel fibers.
  • a multiple LED embodiment is shown in Fig. 3 generally at 40, where like numerals correspond to those detailed above with respect to the preceding figures.
  • Multiple LEDs 12 are mounted in an elongated housing 41.
  • a fiber optic bundle 42 has an end retainer 45 inserted into an opening 44 of the housing 41 such that light emission from the LEDs 12 enters the end 43 and is transmitted therealong.
  • the bundle 42 is flattened to between one and eight layers of fiber at or proximal to end 43.
  • the embodiment of Fig. 3 is particularly well suited for illuminating a surface area larger than that illuminated to a satisfactory flux by a single LED.
  • a diffusing layer 30 and other layers are shown and described with reference to Figs. 2A and 2B are also provided.
  • an inventive lighting device is coupled to a vehicle electrical system in a variety of ways to provide illumination in various circumstances. Such circumstances include in addition to opening a vehicle door, hatchback, or energizing a particular lighting circuit such as a dome light, headlight or taillight include braking, exceeding a speed limit or in synchronicity with an audio presentation associated with the sound system.
  • a conventional bus computer module BCM is intermediate between the circuit and a 12-volt direct current battery associated with the vehicle electrical system.
  • an inventive lighting device 10 is depicted in a typical electrical circuit associated with vehicles such as a motor vehicle tailgate or exterior badging, a motorcycle, or a boat.
  • the central switch depicted in Fig. 5 is for example a tailgate electrical switch, headlamp switch, tail lamp switch or the like. Upon closing of the switch, the inventive device 10 is illuminated.
  • an inventive vehicle light assembly is depicted generally at 50.
  • the fiber optic bundle flattened portion 36 is depicted as a single row for visual clarity.
  • the light assembly 50 is particularly well suited for the formation of a vehicle kick plate or exterior badge.
  • a metal sill plate or badge 52 is provided that defines the bounds of an aperture 54.
  • a transparent or translucent plastic insert 56 is formed with an elevated region 58 adapted to engage the aperture 54 and placed in overlying position to surface 28 of device 10 or 40.
  • the raised region 58 is formed of a transparent or translucent plastic material.
  • the raised region 58 when present, is colorless. More preferably, the raised region 58 and a pedestal region 60 of the blank 56 have like optical transmission properties.
  • a graphic 62 is optionally applied in alignment with the raised region 58 to provide different light transmissive regions within a raised region 58.
  • the graphic 62 is applied by conventional means including the use of a stencil, an applique, or fusion of a colored plastic piece to the insert 56.
  • the graphic 62 is applied to the rearmost surface of the raised region 58 to protect the graphic 62 from abrasion and environmental exposure.
  • a graphic 62 is readily formed with conventional visible light spectrum pigments and dyes, the pigments or dyes fluorescing under illumination provided by an inventive lighting device 10 or 40.
  • the pigmented or dyed film 64 is inserted intermediate between insert 56 and the viewing surface 28 of the inventive lighting device 10 or 40.
  • the components of the vehicle light assembly 50 are secured to a vehicle substrate S and the leads 14 and 14' are coupled to an electrical power source, as for example depicted in Figs. 4 or 5.
  • vehicle light assembly 50 The components of vehicle light assembly 50 are held in place with a variety of conventional securement techniques. As depicted in Fig. 7, a double- sided adhesive foam tape 66 is provided to bind lighting device 10, optional film 64 and insert 56. The tape 66 simultaneously engages the plate 52 and the substrate S to form a completed assembly.
  • an inventive vehicle light assembly is depicted generally at 50.
  • the fiber optic bundle flattened portion 36 is depicted as a single row for visual clarity.
  • the light assembly 50 is particularly well suited for the formation of a vehicle kick plate or exterior badge.
  • a metal sill plate or badge 52 is provided that defines the bounds of an aperture 54.
  • a transparent or translucent plastic insert 56 is formed with an elevated region 58 adapted to engage the aperture 54 and placed in overlying position relative to surface
  • the raised region 58 is formed of a transparent or translucent plastic material. Impact-resistant thermoplastics such as transparent grades of polyacrylics and polycarbonates are particularly well suited for this application.
  • the raised region 58 when present, is colorless. More preferably, the raised region 58 and a pedestal region 60 of the blank 56 have like optical transmission properties.
  • a graphic 62 is optionally applied in alignment with the raised region 58 to provide different light transmissive regions within a raised region 58.
  • the graphic 62 is applied by conventional means including the use of a stencil, an applique, or fusion of a colored plastic piece to the insert 56.
  • the graphic 62 is applied to the rearmost surface of the raised region 58 to protect the graphic 62 from abrasion and environmental exposure.
  • a graphic 62 is readily formed with conventional visible light spectrum pigments and dyes, the pigments or dyes fluorescing under illumination provided by an inventive lighting device 10 or 40.
  • the pigmented or dyed film 64 is inserted intermediate between insert 56 and the viewing surface 28 of the inventive lighting device 10 or 40.
  • the components of the vehicle light assembly 50 are secured to a vehicle substrate S and the leads 14 and 14' are coupled to an electrical power source, as for example depicted in Figs. 4 or 5.
  • Exemplary placements of an inventive vehicle light assembly on a motor vehicle are depicted as the hashed region in Figs. 12-16.
  • the thin vertical profile of an inventive lighting device, low power consumption and the ability to protect the device from environmental degradation provide an inventive lighting assembly that is well suited for incorporation into other vehicles such as watercraft, motorcycles, and snowmobiles as shown in Figs. 17-19.
  • a helmet and apparel such as that worn by motorcyclists or bicyclists also readily incorporate an inventive lighting device to provide superior visibility relative to conventional reflectors.
  • a reflector requires an external light source to shine onto the reflector to provide visibility.
  • an inventive device ensures that a rider wearing a helmet or apparel is visible to a vehicle driver as soon as a line of sight is established under low ambient light conditions.
  • Patent documents and publications mentioned in the specification are indicative of the levels of those skilled in the art to which the invention pertains. These documents and publications are incorporated herein by reference to the same extent as if each individual document or publication was specifically and individually incorporated herein by reference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un dispositif d'éclairage qui inclut un logement contenant une partie émettrice de lumière d'une diode électroluminescente et un bornier d'un faisceau de fibres optiques de sorte que l'émission de lumière de la diode électroluminescente est communiquée le long des fibres optiques. Le faisceau de fibres optiques présente une partie distale aplatie avec un réseau transversal de couches de fibres optiques. Une couche de diffusion est rattachée au faisceau de fibres optiques recouvrant la partie distale aplatie. Le dispositif d'éclairage, en étant recouvert d'un graphique et entouré par un cadre à travers lequel le graphique est visible, fournit un ensemble d'éclairage de véhicule pouvant être rattaché à un substrat de véhicule. L'ensemble lumineux de véhicule est particulièrement approprié pour le marquage extérieur du véhicule, des plaques de bas de porte et l'éclairage de courtoisie à l'intérieur de l'habitacle du véhicule.
EP07813151A 2006-07-20 2007-07-20 Système d'éclairage auxiliaire à fibres optiques Withdrawn EP2049831A4 (fr)

Applications Claiming Priority (2)

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US11/458,702 US7556412B2 (en) 2006-07-20 2006-07-20 Fiber optic auxiliary lighting system
PCT/US2007/073969 WO2008011558A2 (fr) 2006-07-20 2007-07-20 Système d'éclairage auxiliaire à fibres optiques

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EP2049831A2 true EP2049831A2 (fr) 2009-04-22
EP2049831A4 EP2049831A4 (fr) 2011-05-25

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US20080025039A1 (en) 2008-01-31
WO2008011558A2 (fr) 2008-01-24
WO2008011558A8 (fr) 2009-02-19
US7556412B2 (en) 2009-07-07
WO2008011558A3 (fr) 2008-12-31
EP2049831A4 (fr) 2011-05-25

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